--- a/calendar/base/content/dialogs/calendar-event-dialog-attendees.xml
+++ b/calendar/base/content/dialogs/calendar-event-dialog-attendees.xml
@@ -1579,17 +1579,17 @@
                     this.mDragState = 2;
                 } else if (mouseX >= (this.mMargin + this.mWidth - (this.rightdragWidth))) {
                     // Move the enddate only..
                     window.setCursor("e-resize");
                     this.mDragState = 3;
                 } else {
                     // Move the startdate and the enddate
                     this.mDragState = 1;
-                    window.setCursor("-moz-grab");
+                    window.setCursor("grab");
                 }
             }
         }
       ]]></handler>
 
       <handler event="mousemove"><![CDATA[
         var mouseX = event.screenX;
         if (this.mDragState == 1) {

--- a/calendar/base/themes/common/dialogs/calendar-event-dialog.css
+++ b/calendar/base/themes/common/dialogs/calendar-event-dialog.css
@@ -446,14 +446,14 @@ dialog[systemcolors] .addressingWidgetCe
 }
 
 .selection-bar-right {
     width: 3px;
     cursor: e-resize;
 }
 
 .selection-bar-spacer {
-    cursor: -moz-grab;
+    cursor: grab;
 }
 
 .checkbox-no-label > .checkbox-label-box {
     display: none;
 }